isinstance

Checking if an annotation is of a specific type

I am using reflection to see if an annotation that is attached to a property of a class, is of a specific type. Current I am doing: if("javax.validation.Valid".equals(annotation.annotationType().getName())) { ... } Which strikes me as a little kludgey because it relies on a string that is a fully-qualified class-name. If the namesp...

is the "is" operator just syntactic sugar for the "IsInstanceOfType" method

Are the following code snippets equivalent? class a {} class b:a {} b foo=new b(); //here it comes foo is a //...is the same as... typeof(a).isinstanceoftype(foo) Or maybe one of the other Type Methods map closer to the is operator. e.g. "IsAssignableFrom" or "IsSubclassOf" ...

Why doesn't Python's `except` use `isinstance`?

The Python documentation for except says: For an except clause with an expression, that expression is evaluated, and the clause matches the exception if the resulting object is “compatible” with the exception. An object is compatible with an exception if it is the class or a base class of the exception object, [...] Why...